C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 69/00 (2006.01) C08K 5/05 (2006.01) C08K 5/06 (2006.01) C08K 5/09 (2006.01) C08K 5/12 (2006.01) C08L 71/02 (2006.01)
Patent
CA 2069595
A thermoplastic polycarbonate molding composition which is rendered resistant to deterioration induced by exposure to gamma radiation is disclosed. The composition is imparted an improved degree of color stability upon the incorporation of a minor amount of a poly(alkylene oxide) oligomer and a halogenated aromatic acid derivative therewith. In addition, the composition is characterized by its low initial color and the small change in its yellowness index after a waiting period of several weeks.
Krishnan Sivaram
Powell Douglas G.
Corporation Bayer
Miles Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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